Be sure to use proper technique when doing this or try it in conjunction with a tempo trainer to get even more specific!

做这项练习的时候，注意使用合适的技术，或者与节拍训练器协同使用更可获得特别的效果。

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Each swimmer was then asked to swim at 10% below their natural stroke rate and 20% below it, controlled by a Tempo Trainer beeping the timing to them.

每个游泳者然后被要求在自然划频的10%以及20%以下游泳。节奏训练器会发出蜂鸣声来给他信号。

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